mirrors/gst-plugins-rs
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Add lots more virtual method for basesrc

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This commit is contained in:
Sebastian Dröge 2017-09-26 13:39:34 +03:00
parent dc231937d7
commit 60e25bcc91
1 changed files with 304 additions and 1 deletions
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305
gst-plugin/src/base_src.rs
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@ -30,37 +30,99 @@ pub trait BaseSrcImpl<T: BaseSrc>
fn start(&self, _element: &T) -> bool {
true
}
fn stop(&self, _element: &T) -> bool {
true
}
fn is_seekable(&self, _element: &T) -> bool {
false
}
fn get_size(&self, _element: &T) -> Option<u64> {
None
}
fn fill(
&self,
element: &T,
offset: u64,
length: u32,
buffer: &mut gst::BufferRef,
) -> gst::FlowReturn;
) -> gst::FlowReturn {
unimplemented!()
}
fn create(
&self,
element: &T,
offset: u64,
length: u32,
) -> Result<gst::Buffer, gst::FlowReturn> {
element.parent_create(offset, length)
}
fn do_seek(&self, element: &T, segment: &mut gst::Segment) -> bool {
element.parent_do_seek(segment)
}
fn query(&self, element: &T, query: &mut gst::QueryRef) -> bool {
element.parent_query(query)
}
fn event(&self, element: &T, event: &gst::Event) -> bool {
element.parent_event(event)
}
fn get_caps(&self, element: &T, filter: Option<&gst::CapsRef>) -> Option<gst::Caps> {
element.parent_get_caps(filter)
}
fn negotiate(&self, element: &T) -> bool {
element.parent_negotiate()
}
fn set_caps(&self, element: &T, caps: &gst::CapsRef) -> bool {
element.parent_set_caps(caps)
}
fn fixate(&self, element: &T, caps: gst::Caps) -> gst::Caps {
element.parent_fixate(caps)
}
fn unlock(&self, _element: &T) -> bool {
true
}
fn unlock_stop(&self, _element: &T) -> bool {
true
}
}
mopafy_object_impl!(BaseSrc, BaseSrcImpl);
pub unsafe trait BaseSrc
: IsA<gst::Element> + IsA<gst_base::BaseSrc> + ObjectType {
fn parent_create(&self, offset: u64, length: u32) -> Result<gst::Buffer, gst::FlowReturn> {
unsafe {
let klass = self.get_class();
let parent_klass = (*klass).get_parent_class() as *const gst_base_ffi::GstBaseSrcClass;
(*parent_klass)
.create
.map(|f| {
let mut buffer: *mut gst_ffi::GstBuffer = ptr::null_mut();
// FIXME: Wrong signature in -sys bindings
// https://github.com/sdroege/gstreamer-sys/issues/3
let buffer_ref = &mut buffer as *mut _ as *mut gst_ffi::GstBuffer;
match from_glib(f(self.to_glib_none().0, offset, length, buffer_ref)) {
gst::FlowReturn::Ok => Ok(from_glib_full(buffer)),
ret => Err(ret),
}
})
.unwrap_or(Err(gst::FlowReturn::Error))
}
}
fn parent_do_seek(&self, segment: &mut gst::Segment) -> bool {
unsafe {
let klass = self.get_class();
@ -97,6 +159,57 @@ pub unsafe trait BaseSrc
.unwrap_or(false)
}
}
fn parent_get_caps(&self, filter: Option<&gst::CapsRef>) -> Option<gst::Caps> {
unsafe {
let klass = self.get_class();
let parent_klass = (*klass).get_parent_class() as *const gst_base_ffi::GstBaseSrcClass;
let filter_ptr = if let Some(filter) = filter {
filter.as_mut_ptr()
} else {
ptr::null_mut()
};
(*parent_klass)
.get_caps
.map(|f| from_glib_full(f(self.to_glib_none().0, filter_ptr)))
.unwrap_or(None)
}
}
fn parent_negotiate(&self) -> bool {
unsafe {
let klass = self.get_class();
let parent_klass = (*klass).get_parent_class() as *const gst_base_ffi::GstBaseSrcClass;
(*parent_klass)
.negotiate
.map(|f| from_glib(f(self.to_glib_none().0)))
.unwrap_or(false)
}
}
fn parent_set_caps(&self, caps: &gst::CapsRef) -> bool {
unsafe {
let klass = self.get_class();
let parent_klass = (*klass).get_parent_class() as *const gst_base_ffi::GstBaseSrcClass;
(*parent_klass)
.set_caps
.map(|f| from_glib(f(self.to_glib_none().0, caps.as_mut_ptr())))
.unwrap_or(true)
}
}
fn parent_fixate(&self, caps: gst::Caps) -> gst::Caps {
unsafe {
let klass = self.get_class();
let parent_klass = (*klass).get_parent_class() as *const gst_base_ffi::GstBaseSrcClass;
match (*parent_klass).fixate {
Some(fixate) => from_glib_full(fixate(self.to_glib_none().0, caps.into_ptr())),
None => caps,
}
}
}
}
pub unsafe trait BaseSrcClass<T: BaseSrc>
@ -111,9 +224,16 @@ where
klass.is_seekable = Some(base_src_is_seekable::<T>);
klass.get_size = Some(base_src_get_size::<T>);
klass.fill = Some(base_src_fill::<T>);
klass.create = Some(base_src_create::<T>);
klass.do_seek = Some(base_src_do_seek::<T>);
klass.query = Some(base_src_query::<T>);
klass.event = Some(base_src_event::<T>);
klass.get_caps = Some(base_src_get_caps::<T>);
klass.negotiate = Some(base_src_negotiate::<T>);
klass.set_caps = Some(base_src_set_caps::<T>);
klass.fixate = Some(base_src_fixate::<T>);
klass.unlock = Some(base_src_unlock::<T>);
klass.unlock_stop = Some(base_src_unlock_stop::<T>);
}
}
}
@ -172,6 +292,16 @@ macro_rules! box_base_src_impl(
imp.fill(element, offset, length, buffer)
}
fn create(
&self,
element: &T,
offset: u64,
length: u32,
) -> Result<gst::Buffer, gst::FlowReturn> {
let imp: &$name<T> = self.as_ref();
imp.create(element, offset, length)
}
fn do_seek(&self, element: &T, segment: &mut gst::Segment) -> bool {
let imp: &$name<T> = self.as_ref();
imp.do_seek(element, segment)
@ -181,10 +311,41 @@ macro_rules! box_base_src_impl(
let imp: &$name<T> = self.as_ref();
BaseSrcImpl::query(imp, element, query)
}
fn event(&self, element: &T, event: &gst::Event) -> bool {
let imp: &$name<T> = self.as_ref();
imp.event(element, event)
}
fn get_caps(&self, element: &T, filter: Option<&gst::CapsRef>) -> Option<gst::Caps> {
let imp: &$name<T> = self.as_ref();
imp.get_caps(element, filter)
}
fn negotiate(&self, element: &T) -> bool {
let imp: &$name<T> = self.as_ref();
imp.negotiate(element)
}
fn set_caps(&self, element: &T, caps: &gst::CapsRef) -> bool {
let imp: &$name<T> = self.as_ref();
imp.set_caps(element, caps)
}
fn fixate(&self, element: &T, caps: gst::Caps) -> gst::Caps {
let imp: &$name<T> = self.as_ref();
imp.fixate(element, caps)
}
fn unlock(&self, element: &T) -> bool {
let imp: &$name<T> = self.as_ref();
imp.unlock(element)
}
fn unlock_stop(&self, element: &T) -> bool {
let imp: &$name<T> = self.as_ref();
imp.unlock(element)
}
}
};
);
@ -298,6 +459,35 @@ where
}).to_glib()
}
unsafe extern "C" fn base_src_create<T: BaseSrc>(
ptr: *mut gst_base_ffi::GstBaseSrc,
offset: u64,
length: u32,
buffer_ptr: *mut gst_ffi::GstBuffer,
) -> gst_ffi::GstFlowReturn
where
T::ImplType: BaseSrcImpl<T>,
{
callback_guard!();
floating_reference_guard!(ptr);
let element = &*(ptr as *mut InstanceStruct<T>);
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
let imp = &*element.imp;
// FIXME: Wrong signature in -sys bindings
// https://github.com/sdroege/gstreamer-sys/issues/3
let buffer_ptr = buffer_ptr as *mut *mut gst_ffi::GstBuffer;
panic_to_error!(&wrap, &element.panicked, gst::FlowReturn::Error, {
match imp.create(&wrap, offset, length) {
Ok(buffer) => {
*buffer_ptr = buffer.into_ptr();
gst::FlowReturn::Ok
}
Err(err) => err,
}
}).to_glib()
}
unsafe extern "C" fn base_src_do_seek<T: BaseSrc>(
ptr: *mut gst_base_ffi::GstBaseSrc,
segment: *mut gst_ffi::GstSegment,
@ -352,3 +542,116 @@ where
imp.event(&wrap, &from_glib_none(event_ptr))
}).to_glib()
}
unsafe extern "C" fn base_src_get_caps<T: BaseSrc>(
ptr: *mut gst_base_ffi::GstBaseSrc,
filter: *mut gst_ffi::GstCaps,
) -> *mut gst_ffi::GstCaps
where
T::ImplType: BaseSrcImpl<T>,
{
callback_guard!();
floating_reference_guard!(ptr);
let element = &*(ptr as *mut InstanceStruct<T>);
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
let imp = &*element.imp;
let filter = if filter.is_null() {
None
} else {
Some(gst::CapsRef::from_ptr(filter))
};
panic_to_error!(
&wrap,
&element.panicked,
None,
{ imp.get_caps(&wrap, filter) }
).map(|caps| caps.into_ptr())
.unwrap_or(ptr::null_mut())
}
unsafe extern "C" fn base_src_negotiate<T: BaseSrc>(
ptr: *mut gst_base_ffi::GstBaseSrc,
) -> glib_ffi::gboolean
where
T::ImplType: BaseSrcImpl<T>,
{
callback_guard!();
floating_reference_guard!(ptr);
let element = &*(ptr as *mut InstanceStruct<T>);
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
let imp = &*element.imp;
panic_to_error!(&wrap, &element.panicked, false, { imp.negotiate(&wrap) }).to_glib()
}
unsafe extern "C" fn base_src_set_caps<T: BaseSrc>(
ptr: *mut gst_base_ffi::GstBaseSrc,
caps: *mut gst_ffi::GstCaps,
) -> glib_ffi::gboolean
where
T::ImplType: BaseSrcImpl<T>,
{
callback_guard!();
floating_reference_guard!(ptr);
let element = &*(ptr as *mut InstanceStruct<T>);
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
let imp = &*element.imp;
let caps = gst::CapsRef::from_ptr(caps);
panic_to_error!(
&wrap,
&element.panicked,
false,
{ imp.set_caps(&wrap, caps) }
).to_glib()
}
unsafe extern "C" fn base_src_fixate<T: BaseSrc>(
ptr: *mut gst_base_ffi::GstBaseSrc,
caps: *mut gst_ffi::GstCaps,
) -> *mut gst_ffi::GstCaps
where
T::ImplType: BaseSrcImpl<T>,
{
callback_guard!();
floating_reference_guard!(ptr);
let element = &*(ptr as *mut InstanceStruct<T>);
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
let imp = &*element.imp;
let caps = from_glib_full(caps);
panic_to_error!(&wrap, &element.panicked, gst::Caps::new_empty(), {
imp.fixate(&wrap, caps)
}).into_ptr()
}
unsafe extern "C" fn base_src_unlock<T: BaseSrc>(
ptr: *mut gst_base_ffi::GstBaseSrc,
) -> glib_ffi::gboolean
where
T::ImplType: BaseSrcImpl<T>,
{
callback_guard!();
floating_reference_guard!(ptr);
let element = &*(ptr as *mut InstanceStruct<T>);
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
let imp = &*element.imp;
panic_to_error!(&wrap, &element.panicked, false, { imp.unlock(&wrap) }).to_glib()
}
unsafe extern "C" fn base_src_unlock_stop<T: BaseSrc>(
ptr: *mut gst_base_ffi::GstBaseSrc,
) -> glib_ffi::gboolean
where
T::ImplType: BaseSrcImpl<T>,
{
callback_guard!();
floating_reference_guard!(ptr);
let element = &*(ptr as *mut InstanceStruct<T>);
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
let imp = &*element.imp;
panic_to_error!(&wrap, &element.panicked, false, { imp.unlock_stop(&wrap) }).to_glib()
}